%A Yuheng FENG, Xuguang JIANG, Yong CHI, Xiaodong LI, Hongmei ZHU %T Thermogravimetric coupled with Fourier transform infrared analysis study on thermal treatment of monopotassium phosphate residue %0 Journal Article %D 2011 %J Front. Environ. Sci. Eng. %J Frontiers of Environmental Science & Engineering %@ 2095-2201 %R 10.1007/s11783-011-0322-6 %P 186-192 %V 5 %N 2 %U {https://journal.hep.com.cn/fese/EN/10.1007/s11783-011-0322-6 %8 2011-06-05 %X

In China, safe disposal of hazardous waste is more and more a necessity, urged by rapid economic development. The pyrolysis and combustion characteristics of a residue from producing monopotassium phosphate (monopotassium phosphate residue), considered as a hazardous waste, were studied using a thermogravimetric, coupled with Fourier transform infrared analyzer (TG-FTIR). Both pyrolysis and combustion runs can be subdivided into three stages: drying, thermal decomposition, and final devolatilization. The average weight loss rate during fast thermal decomposition stage in pyrolysis is higher than combustion. Acetic acid, methane, pentane, (acetyl) cyclopropane, 2,4,6-trichlorophenol, CO, and CO2 were distinguished in the pyrolysis process, while CO2 was the dominant combustion product.